Agronomy and Weed Science: Rice, Cyperus difformis

I’m surveying the incidence and types of resistance to ALS-inhibiting herbicides in small flower umbrella sedge (Cyperus difformis) found throughout the California rice-production area, and will hopefully be able to describe the metabolic and genetic bases of resistance in several candidates small flower populations. I’m also investigating the effects of burial depth of drill-seeded rice on competitive weed pressure.